function new_window(url, name, w, h) {
	window.open(url,name,' HEIGHT='+h+',WIDTH='+w);
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = '; expires='+date.toGMTString();
  }
  else expires = '';
  document.cookie = name+'='+value+expires+'; path=/';
}

function readCookie(name) {
  var nameEQ = name + '=';
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}
function setCSS(nome_file_css) { 
		//
		if (document.getElementById)
			{
				var x = document.getElementById('style');
				var styleName = x.options[x.selectedIndex].value;
			}
			else if (document.all)
			{
				var x = document.all['style'];
				var styleName = x.options[x.selectedIndex].value;				
			}
			else if (document.layers)
			{
				var x = document.layers['style'];
				//text2 = '<P CLASS="testclass">' + message + '</P>';
				var styleName = x.options[x.selectedIndex].value;
			}
			//alert(styleName);
		//
		if (styleName != "")  {
			createCookie('userSkin',styleName,365);
			location.reload();
		}
}
function setCSShref(nome_file_css) {
	var link_ = document.getElementsByTagName("link");
	for ($i=0;$i<link_.length;$i++)
		if(link_[$i].media=="all") {
			link_[$i].href= "css/"+nome_file_css+".css";
			//alert("css/"+nome_file_css+".css");
		}
}

function randomStyle(nStyles) {
	
	var randomnumber = Math.random() ;
	var rand = Math.round( (nStyles-1) * randomnumber) + 1 ;
	
	return rand;
}
/*
function setSelect(nome_file_css) {

	alert(nome_file_css);
	if (document.getElementById)	var x = document.getElementById('style');
	else if (document.all)			var x = document.all['style'];		
	else if (document.layers)		var x = document.layers['style'];
		
	for (var i = 0; i < x.length; i++) if (x.options[i].value == nome_file_css) break;
	
	x.options[i].selected = true;

}

	var nome_file_css;
*/
	//nome_file_css = readCookie('userSkin');
	//if(nome_file_css)	setCSShref(nome_file_css);

window.onload = function() {
	
	var nStyles = 2;
	
	nome_file_css = readCookie('userSkin');
		
	if(nome_file_css == "1" || nome_file_css == "2") {
		
		//alert('setCSShref('+nome_file_css+')');

		setCSShref(nome_file_css);
		
		if (document.getElementById)	var x = document.getElementById('style');
		else if (document.all)			var x = document.all['style'];		
		else if (document.layers)		var x = document.layers['style'];
		
		for (var i = 0; i < x.length; i++) if (x.options[i].value == nome_file_css) break;
		
		x.options[i].selected = true;
		
	} else {
		 // prende skin casuale	
		 var nome_file_css = randomStyle(nStyles);
		 
 		//alert('setCSShref('+nStyle+')');

		 setCSShref(nome_file_css);
		 
		if (document.getElementById)	var x = document.getElementById('style');
		else if (document.all)			var x = document.all['style'];		
		else if (document.layers)		var x = document.layers['style'];
		
		for (var i = 0; i < x.length; i++) if (x.options[i].value == nome_file_css) break;
		
		x.options[i].selected = true;
		
	}
}